American Association of School Librarians. ''[http://www.alastore.ala.org/detail.aspx?ID=2682 Empowering Learners: Guidelines for School Library Media Programs]''. Chicago, Ill: American Association of School Librarians, 2009.

American Association of School Librarians. ''[http://www.alastore.ala.org/detail.aspx?ID=2682 Empowering Learners: Guidelines for School Library Media Programs]''. Chicago, Ill: American Association of School Librarians, 2009.